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Cog House

A Grade II Listed Building in Sully, Vale of Glamorgan

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Latitude: 51.412 / 51°24'43"N

Longitude: -3.2053 / 3°12'18"W

OS Eastings: 316272

OS Northings: 168798

OS Grid: ST162687

Mapcode National: GBR HX.Q6GS

Mapcode Global: VH6FL.DRCX

Plus Code: 9C3RCQ6V+RV

Entry Name: Cog House

Listing Date: 30 January 1992

Last Amended: 25 September 2002

Grade: II

Source: Cadw

Source ID: 13460

Building Class: Domestic

Location: Forming the E range of the farm complex set back behind wall with iron railings, just W of the T-junction with Swanbridge Road and Sully Road, NE of Sully village.

County: Vale of Glamorgan

Community: Sully and Lavernock (Sili a Larnog)

Community: Sully

Locality: Cog

Traditional County: Glamorgan

Find accommodation in
Dinas Powis


Cog Farm is said to have been built c 1816-17 by Evan Thomas of Sully House, the farmhouse probably contemporary. Some later C19 enlargements and further C20 alterations. Farm was laid out on a model farm plan reflecting the agricultural prosperity of the region in early C19 and included farmyards to front, a wide range of farm buildings and a separate rickyard to rear. In the Sully Tithe apportionment of 1846, all Cog land and buildings appear under the name of John Bland.


Farmhouse. Of stone,roughcast rendered, with slate roof and wide boarded eaves; 2 ridge stacks to each wing of which 2 are rendered. L-shaped plan. Two storeys. 3-window range to long frontage with projecting single bay wing to right. Glazing is mostly replaced small-pane casement windows. Off-centre gabled porch. Gable-ended wing to right has decorative bargeboards; similar bargeboards to rear and to the 3 parallel cross ranges. Central entrance to right hand side which includes 12-pane sash window. Road frontage has a 3-window range, all altered glazing except ground floor sash left of door; centre right doorway with replaced door, overlight. A range of small white-painted stone farmyard buildings with pantile roofs extends to side, facing the main farmyard complex.


Interior reported to retain old boarded stairs, open fireplaces.

Reasons for Listing

Listed as an integral part of this model farm complex; group value with other buildings within it.

Recommended Books

Other nearby listed buildings

  • II Planned group of farmyard buildings at Cog Farm
    Cog Farm lies W of the T-junction in Cog, NE of Sully village; the farmyards and farm ranges are to W of the farmhouse.
  • II Nicells
    At the northern end of Swanbridge Road at the junction with Cog Road and Sully Road, on the western side overlooking the complex of Cog Farm.
  • II Eight rickstands to N side of Cog Farm
    Cog Farm lies to W of the T-junction in Cog, N of Sully Village; the rickstands are situated at the NE edge of the former rickyard bordering the fields and to the rear of the farmyard buildings which
  • II Barn at Home Farm
    On the hillside just E of the junction of Sully Road, Cog Road and Swanbridge Road, near the enclosed farmyard and reached by a track.
  • II Downs Farmhouse
    SE of the main village on the edge of the low-lying land known as the Moors, reached by a drive.
  • II Limekiln
    In a private garden, close to the lane, a cul-de-sac, on the slope S of Cog Road.
  • II Church of St John the Baptist
    At the W end of the C20 urban development of Sully, the core of the former village, in a large roughly triangular churchyard on a corner site with Cog Road.
  • II Swanbridge House
    Directly facing the sea, separated from it only by a narrow lane; within a garden bounded at front by a wall with cast iron railings,gates and iron gatepiers.

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